Build failed raspbian stretch about emqx-rel

[gilbertwong96]

gen_coap needs the leex module in order to compile. Normally this module is installed with Erlang in a complete installation. But it was wrong on Raspberry pi. So I recommend you to compile and make install erlang/otp 20 yourself on your Raspberry pi and compile master branch of emq-relx . I'm not familiar with Raspberry pi. Maybe it could help you.

[gilbertwong96]

It is the compile error. Which erlang/otp version do you use?

[sushrut91]

Erlang/OTP 19 [erts-8.2.1] [source] [smp:4:4] [async-threads:10] [kernel-poll:false]

Eshell V8.2.1 (abort with ^G)

[gilbertwong96]

@sushrut91, The build failure has been fixed after merging this PR https://github.com/emqx/emqx-coap/pull/83 Now,it should be ok. Please try again.

[sushrut91]

Thanks for your help, with Erlang/OTP 20 the compilation error went away however I am getting this error when I try to run the /bin/emqttd

sudo ./emqttd console
Argument '-smp disable' not supported. Use "+S 1" instead.
Usage: erl [-version] [-sname NAME | -name NAME] [-noshell] [-noinput] [-env VAR VALUE] [-compile file ...] [-smp [auto|enable]] [-make] [-man [manopts] MANPAGE] [-x] [-emu_args] [-start_epmd BOOLEAN] [-args_file FILENAME] [+A THREADS] [+a SIZE] [+B[c|d|i]] [+c [BOOLEAN]] [+C MODE] [+h HEAP_SIZE_OPTION] [+K BOOLEAN] [+l] [+M<SUBSWITCH> <ARGUMENT>] [+P MAX_PROCS] [+Q MAX_PORTS] [+R COMPAT_REL] [+r] [+rg READER_GROUPS_LIMIT] [+s SCHEDULER_OPTION] [+S NO_SCHEDULERS:NO_SCHEDULERS_ONLINE] [+SP PERCENTAGE_SCHEDULERS:PERCENTAGE_SCHEDULERS_ONLINE] [+T LEVEL] [+V] [+v] [+W<i|w|e>] [+z MISC_OPTION] [args ...]

[gilbertwong96]

Erlang/OTP 20 does not accept "-smp disable". Did you compile version 2.1.0 of emq-relx which only supported on Erlang/OTP 19 ?

If you use Erlang/OTP 20, please checkout v2.3.11 tag of emq-relx and rebuild it again.

[sushrut91]

I switched to v2.3.11 with Erlang/OTP 20 and now things are working fine. Thanks for your help !